
4.8.1
Wiring diagram
Fig.4-10:
Connection of KeTop T50VGA with RS-422-A via connection box KeTop CB211
4.8.2
General information about the RS-422-A interface
●
The A terminal of the generator shall be negative with respect to the B
terminal for a binary 1 (MARK or OFF) state.
●
The A terminal of the generator shall be positive with respect to the B ter-
minal for a binary 0 (SPACE or ON) state.
To identify the lines, the voltage between the lines A and B can be measured
by means of a voltameter.
4.9
RS-232-C
The serial interface can be used as RS-232-C or as RS-422-A interface (se-
lection by Dip switches). The communication takes place via the COM-SIO
connector S11 in the cable entrance area of the KeTop.
Information
The simultaneous use of the Ethernet interface and the COM interface
(RS-422-A or RS-232-C) is only possible with an appropriate cable
The RS-232-C interface assigned to the COM 5 interface port is in the software.
The interface parameters are set via the WIN32API in the Windows operating
system.
Connection
© KEBA 2009
User's Manual V1.50
35
Summary of Contents for KeTop T100
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